4XL fit Upper with extension piece 23.5-30", upper without extension piece 23.5-27", Lower 22-25.5". Extra extension panel gives you a wider adjustment range, so the brace wraps your leg correctly instead of cutting off circulation or flopping loose. 【DESIGNED FOR RECOVERY】- Our hinged knee brace with side stabilizers is a good choice of pain relief, joint protection / support. This knee brace for women and men is ideal for patients suffering from ACL/PCL/MCL/LCL injuries, meniscus tear, arthritis, and post-surgery rehab. 【MAXIMUM SUPPORT AND STRONG STABILITY】- Our upgraded knee braces with dual removable bilateral aluminum hinges and thickened by 2MM, it made of high-quality alloy steel with gear technology. providing sufficient compression and support for the knee and patella better. This plus size knee brace can protect your knee from further injury without restricting the movement! Which is a good choice to prevents hyperextension. 【ADJUSTABLE STRAPS & EXTRA EXTENSIONS】- The knee braces for men/women with 2 adjustable straps,with hook and loop closure way, add with silicon strips inside. It makes the knee stabilizer brace non-slip but with the best comfit and a safeguard. It comes with one piece extra extensions, let the plus size knee brace has a more wide range of size. Our knee brace with metal side stabilizers is fits left and right knee, universal for men and women. 【BREATHABLE & NON SLIP】- Medical grade neoprene with ventilated air holes wicks moisture and prevents heat buildup during extended wear. Built-in anti-slip silicone strips grip your leg so the brace stays in position as you walk, bend, or sit — no tugging it back up every few steps. 【PERFECT FOR MOTION】- This adjustable knee brace is supply maximum support and stability, but doesn't limit your exercise,perfect for all exercises,such as football, soccer, basketball, volleyball, running or heavy weight lifting, exercises, post-surgery, etc. 【WARM TIPS OF SIZE CHOICE】- Our knee brace with side stabilizers is suitable for most leg ircumferences,due to everbody has different figure, measure the thigh circumference 6 inches above the center of the knee before buying,pls reference to the size chart to select the correct one, pls attention: Don't choose based on your experience, different brands with different sizes. Need a knee brace that actually fits your leg — and stays where you put it? This plus size hinged knee brace is built for larger thighs (up to 35.5") with dual aluminum side stabilizers that give you the lateral support needed for ACL, MCL, LCL, and meniscus tear recovery. The open patella design relieves pressure on the kneecap while medical-grade neoprene with air vent technology keeps you comfortable during extended wear. Unlike slip-on sleeves that roll down, the adjustable 2-strap hook-and-loop closure lets you customize compression from thigh to calf — and built-in silicone anti-slip strips keep the brace locked in place as you walk, bend, or sit. Fits left or right knee · Universal for men and women Removable aluminum hinges for flexible support levels 6XL size with extension panel included 30-day satisfaction guarantee — try it risk-free